Having already struck the 3D barrel’s bottom with its last, third installment, Spy Kids: All the Time in the World goes the extra step to deliver a new gimmicky way to repel: “4-D,” otherwise known as Aroma-Scope, which is basically a card with scratch-and-sniff scents to be “enjoyed” when the movie prompts. Even without such olfactory obnoxiousness, writer/director Robert Rodriguez’s fourth entry in his kiddie franchise is, like its predecessors, a tediously cartoonish candy-colored rollercoaster. Rebooting the action-comedy series via a “next generation” tale, the film finds fresh heroes in Rebecca (Rowan Blanchard) and Cecil (Mason Cook), who are called into secret-agent duty against the evil Timekeeper after learning that their stepmom (Jessica Alba) is actually a super-spy. Wielding wild gizmos and accompanied by their talking robotic dog (voiced by Ricky Gervais), the young duo navigate madcap videogame-esque hijinks defined primarily by cheesy CG effects and copious poop jokes, from Alba dispatching a villain with a dirty diaper to the robo-pup dropping doo-doo bombs. A message about cherishing time with loved ones is as tacked on as its performances are broad (especially Jeremy Piven, in multiple funny-voiced roles). Between its lame slapstick and bevy of odors that potently recall New Jersey Turnpike factory chemicals, this Spy Kids manages to both figuratively and literally stink.